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Finding the Fourth Proportional to 69,965.44, 104,896.32 and 42,256.96

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Solution

The fourth proportional to 69,965.44, 104,896.32 and 42,256.96 is: 63,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,965.44 : 104,896.32 = 42,256.96 : x
  2. Step 2: Convert to fraction form
    69,965.44/104,896.32 = 42,256.96/x
  3. Step 3: Cross multiply
    69,965.44x = 104,896.32 × 42,256.96
  4. Step 4: Simplify right side
    69,965.44x = 4,432,599,598.39
  5. Step 5: Solve for x
    x = 4,432,599,598.39/69,965.44
  6. Step 6: Final answer
    x = 63,354.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.